/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
 * licenses this file to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package org.apache.hadoop.zebra.pig.comparator;

/**
 * Helper class for fixed length primitives
 */
public abstract class FixedLengthPrimitive extends LeafExpr {
  protected byte[] bytes;

  /**
   * Constructor
   * 
   * @param index
   * @param length
   */
  protected FixedLengthPrimitive(int index, int length) {
    super(index);
    bytes = new byte[length];
  }
 
  protected abstract void convertValue(byte[] b, Object o);

  protected void appendObject(EncodingOutputStream out, Object o) {
    convertValue(bytes, o);
    out.write(bytes, 0, bytes.length);
  }

  protected boolean implicitBound() {
    return false;
  }
}
